/* ============================================
   COURSES.CSS - استایل صفحه لیست دوره‌ها
   ============================================ */

.courses-page {
    padding: 140px 0 80px;
    background: var(--bg-primary);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* ========== هدر بخش ========== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-subtitle {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(79, 172, 254, 0.1);
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-desc {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1rem;
    line-height: 1.8;
}

/* ========== فیلتر و جستجو ========== */
.courses-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 50px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.filter-tabs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 0.85rem;
}

.filter-tab svg {
    stroke: var(--text-secondary);
    transition: all 0.3s ease;
}

.filter-tab.active,
.filter-tab:hover {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(79, 172, 254, 0.3);
}

.filter-tab.active svg,
.filter-tab:hover svg {
    stroke: white;
}

.search-box {
    position: relative;
}

.search-box input {
    padding: 12px 24px 12px 50px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-primary);
    width: 300px;
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.2);
}

.search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    stroke: var(--text-muted);
    pointer-events: none;
}

/* ========== لودینگ اسکلتون ========== */
.loading-skeleton {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 32px;
}

.skeleton-card {
    background: var(--bg-card);
    border-radius: 28px;
    height: 450px;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ========== گرید دوره‌ها ========== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 32px;
}

.course-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: 28px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    position: relative;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.course-card:hover::before {
    transform: scaleX(1);
}

.course-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 25px 45px rgba(0, 0, 0, 0.3);
}

/* تصویر دوره */
.course-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.course-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--accent-gradient);
    color: white;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* برچسب ویژه */
.course-card[data-category="fullstack"] .course-badge {
    background: linear-gradient(135deg, #f093fb, #f5576c);
}

.course-card[data-category="ai"] .course-badge {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
}

/* محتوای کارت */
.course-content {
    padding: 24px;
}

.course-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.course-title {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-primary);
    line-height: 1.4;
    transition: color 0.3s ease;
}

.course-card:hover .course-title {
    color: var(--accent-color);
}

.course-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.7;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ویژگی‌های دوره */
.course-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.feature-tag {
    background: rgba(79, 172, 254, 0.1);
    border: 1px solid rgba(79, 172, 254, 0.2);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 0.65rem;
    color: var(--accent-color);
}

/* فوتر کارت */
.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.course-price {
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--accent-color);
}

.course-price small {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* دکمه‌ها */
.btn-sm {
    padding: 10px 20px;
    font-size: 0.8rem;
    border-radius: 40px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
}

.btn-outline:hover {
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--accent-gradient);
    border: none;
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(79, 172, 254, 0.4);
}

/* حالت بدون نتیجه */
.no-results {
    text-align: center;
    padding: 80px 40px;
    background: var(--bg-card);
    border-radius: 28px;
    grid-column: 1 / -1;
    border: 1px solid var(--border-color);
}

.no-results svg {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    stroke: var(--text-muted);
    opacity: 0.5;
}

.no-results h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.no-results p {
    color: var(--text-muted);
}

/* ========== انیمیشن ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.course-card {
    animation: fadeInUp 0.5s ease forwards;
}

/* ========== ریسپانسیو ========== */
@media (max-width: 1200px) {
    .courses-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 25px;
    }
}

@media (max-width: 992px) {
    .courses-page {
        padding: 130px 0 70px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .courses-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .courses-page {
        padding: 120px 0 60px;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .section-desc {
        font-size: 0.9rem;
    }
    
    .courses-filter {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-tabs {
        justify-content: center;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .course-card {
        max-width: 450px;
        margin: 0 auto;
    }
    
    .course-meta {
        flex-wrap: wrap;
    }
}

@media (max-width: 576px) {
    .courses-page {
        padding: 110px 0 50px;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
    
    .section-subtitle {
        font-size: 0.7rem;
        padding: 6px 18px;
    }
    
    .filter-tab {
        padding: 8px 16px;
        font-size: 0.75rem;
    }
    
    .filter-tab svg {
        width: 14px;
        height: 14px;
    }
    
    .course-content {
        padding: 18px;
    }
    
    .course-title {
        font-size: 1.1rem;
    }
    
    .course-price {
        font-size: 1.1rem;
    }
    
    .course-footer {
        flex-direction: column;
        align-items: stretch;
    }
    
    .course-footer .btn {
        text-align: center;
        width: 100%;
    }
    
    .btn-sm {
        padding: 10px 16px;
    }
}
    /* فقط دسکتاپ */
@media (min-width: 769px) {

    .courses-filter {
        display: flex;
        align-items: center;
        gap: 20px;
        width: 100%;
        overflow: hidden;
    }

    .filter-tabs {
        display: flex;
        align-items: center;
        flex-wrap: nowrap;
        gap: 12px;

        flex: 1;
        min-width: 0;

        overflow-x: auto;
        overflow-y: hidden;

        white-space: nowrap;

        /* مخفی کردن scrollbar */
        scrollbar-width: none;
        -ms-overflow-style: none;

        /* محو شدن انتهای نوار */
        mask-image: linear-gradient(
            to left,
            transparent 0,
            black 30px,
            black 100%
        );

        -webkit-mask-image: linear-gradient(
            to left,
            transparent 0,
            black 35px,
            black 100%
        );
    }

    .filter-tabs::-webkit-scrollbar {
        display: none;
    }

    .filter-tab {
        flex: 0 0 auto;
        white-space: nowrap;
        text-decoration-line: none;
    }

    .search-box {
        flex: 0 0 300px;
    }
}
.course-search-form {
    width: 50%;
    max-width: 300px;
}

.search-box {
    position: relative;
    width: 100%;
    height: 52px;

    display: flex;
    align-items: center;

    padding: 5px;

    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;

    background: var(--bg-primary);

    transition:
        border-color 0.25s ease,
        box-shadow 0.25s ease,
        background 0.25s ease;
}

.search-box:focus-within {
    border-color: rgba(0, 242, 254, 0.45);

    background: rgba(255, 255, 255, 0.045);

    box-shadow:
        0 0 0 3px rgba(0, 242, 254, 0.06),
        0 0 25px rgba(0, 242, 254, 0.08);
}

.search-box input {
    flex: 1;

    width: 100%;
    height: 100%;

    padding: 0 16px;

    border: none;
    outline: none;

    background: var(--bg-primary);
    font-family: inherit;
    font-size: 14px;

    direction: rtl;
    text-align: right;
}



.search-box button {
    flex: 0 0 42px;

    width: 42px;
    height: 42px;

    display: flex;
    align-items: center;
    justify-content: center;

    border: none;
    border-radius: 10px;

    cursor: pointer;

    color: #061018;

    background: linear-gradient(
        135deg,
        #00f2fe,
        #4facfe
    );

    box-shadow:
        0 0 15px rgba(0, 242, 254, 0.15);

}

.search-box button:hover {




    box-shadow:
        0 0 20px rgba(0, 242, 254, 0.3);
}



.search-icon {
    width: 18px;
    height: 18px;
}
.course-search-form {
    direction: rtl;
}